1057332247 has 2 divisors, whose sum is σ = 1057332248. Its totient is φ = 1057332246.

The previous prime is 1057332233. The next prime is 1057332259. The reversal of 1057332247 is 7422337501.

It is a strong prime.

It is an emirp because it is prime and its reverse (7422337501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1057332247 - 2¹¹ = 1057330199 is a prime.

It is a super-2 number, since 2×1057332247² = 2235902961092138018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1057332347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528666123 + 528666124.

It is an arithmetic number, because the mean of its divisors is an integer number (528666124).

Almost surely, 2^1057332247 is an apocalyptic number.

1057332247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057332247 is an equidigital number, since it uses as much as digits as its factorization.

1057332247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 1057332247 is about 32516.6456910918. The cubic root of 1057332247 is about 1018.7567342850.

Adding to 1057332247 its reverse (7422337501), we get a palindrome (8479669748).

The spelling of 1057332247 in words is "one billion, fifty-seven million, three hundred thirty-two thousand, two hundred forty-seven".